here's whats happening ![Mr. Green :mrgreen: :mrgreen:](/sphere/data/assets/smilies/icon_mrgreen.gif)
i picked up this 2004 kxf250 roller for a pretty awesome price thanks to the guys down at Eastern Motorcycle Wreckers (Victoria, AUS)
![kxf250.JPG kxf250.JPG](https://endless-sphere.com/sphere/data/attachments/71/71665-08466acef22663389f28dd2ffad6ba86.jpg)
the plan is to drop it on 17in motard tyres and combine it with 2 GNG big block motors i picked up from mrtao a while back. all going well i believe this will be a nice power plant for an inner city commuter.
here's a few pictures of my current mounting solution:
front mounting plate:
![front plate design 1.JPG front plate design 1.JPG](https://endless-sphere.com/sphere/data/attachments/71/71666-20c66c4615bf990cee5b03a475aede5b.jpg)
rear mounting plate:
![rear plate design 1.JPG rear plate design 1.JPG](https://endless-sphere.com/sphere/data/attachments/71/71667-90da3a38de2adbe3bbf6e4ea22db72be.jpg)
wooden cutouts mounted in the bike:
View attachment 2
close up:
![RIMG0003.JPG RIMG0003.JPG](https://endless-sphere.com/sphere/data/attachments/71/71669-dbe358cbea69912e7a9ec0b78cdd1f66.jpg)
![RIMG0005.JPG RIMG0005.JPG](https://endless-sphere.com/sphere/data/attachments/71/71668-96c360fd75af2607db056157347a36fc.jpg)
im aiming for a geared top speed of 85km/h running on 24's (88v) LiPo cells and a distance of around 30km on fairly flat Melbourne roads (enough for a return trip to uni.)
based on the Big block kv of 62 this will be achieved with a 6.8:1 reduction ratio.
as for chain selection the #219 pitch looks suitable and makes this ratio quite achievable with a single stage reduction. the issue i face at the moment is finding 16mm straight bore keyed 219 sprockets as all seem to be either tapered shaft Yamaha style or 3/4in which are too large for the motor shaft. if there is a suitable off the shelf solution id love to hear about it
there's still plenty of detail to fill in here regarding ESC selection, battery capacity and BMS which i hope to gain from this awesome community of e bikers
further details to come:![Big grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
![Mr. Green :mrgreen: :mrgreen:](/sphere/data/assets/smilies/icon_mrgreen.gif)
i picked up this 2004 kxf250 roller for a pretty awesome price thanks to the guys down at Eastern Motorcycle Wreckers (Victoria, AUS)
![kxf250.JPG kxf250.JPG](https://endless-sphere.com/sphere/data/attachments/71/71665-08466acef22663389f28dd2ffad6ba86.jpg)
the plan is to drop it on 17in motard tyres and combine it with 2 GNG big block motors i picked up from mrtao a while back. all going well i believe this will be a nice power plant for an inner city commuter.
here's a few pictures of my current mounting solution:
front mounting plate:
![front plate design 1.JPG front plate design 1.JPG](https://endless-sphere.com/sphere/data/attachments/71/71666-20c66c4615bf990cee5b03a475aede5b.jpg)
rear mounting plate:
![rear plate design 1.JPG rear plate design 1.JPG](https://endless-sphere.com/sphere/data/attachments/71/71667-90da3a38de2adbe3bbf6e4ea22db72be.jpg)
wooden cutouts mounted in the bike:
View attachment 2
close up:
![RIMG0003.JPG RIMG0003.JPG](https://endless-sphere.com/sphere/data/attachments/71/71669-dbe358cbea69912e7a9ec0b78cdd1f66.jpg)
![RIMG0005.JPG RIMG0005.JPG](https://endless-sphere.com/sphere/data/attachments/71/71668-96c360fd75af2607db056157347a36fc.jpg)
im aiming for a geared top speed of 85km/h running on 24's (88v) LiPo cells and a distance of around 30km on fairly flat Melbourne roads (enough for a return trip to uni.)
based on the Big block kv of 62 this will be achieved with a 6.8:1 reduction ratio.
as for chain selection the #219 pitch looks suitable and makes this ratio quite achievable with a single stage reduction. the issue i face at the moment is finding 16mm straight bore keyed 219 sprockets as all seem to be either tapered shaft Yamaha style or 3/4in which are too large for the motor shaft. if there is a suitable off the shelf solution id love to hear about it
there's still plenty of detail to fill in here regarding ESC selection, battery capacity and BMS which i hope to gain from this awesome community of e bikers
further details to come: